Portable speaker



FIG. 1 is a front perspective view of the portable speaker of the present invention showing my new design;

FIG. 2 is a front side elevational view thereof;

FIG. 3 is a back side elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is another side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown are included for the purpose of illustrating portions of the portable speaker that form no part of the claim. 

CLAIM The ornamental design for portable speaker, as shown and described. 